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 ###Instrução: Qual é o menor ERP W quando a frequência MHz é 89,3 fm?
 ###Tabelas: CREATE TABLE senate (senate_id AUTO_INCREMENT PRIMARY KEY, State (class) VARCHAR, Vacator VARCHAR, Reason for change VARCHAR, Successor VARCHAR, Date of successor's formal installation VARCHAR) CREATE TABLE prize_money_won (prize_money_won_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Group Legs won INT, Play-Off Legs won INT, Winners Group Legs won INT, Winners Play-Off Legs won INT, Final position money won* VARCHAR, Total money won VARCHAR) CREATE TABLE days_of_the_week (days_of_the_week_id AUTO_INCREMENT PRIMARY KEY, Arabic VARCHAR, English VARCHAR, Maltese VARCHAR, Turkish VARCHAR, Somali VARCHAR, Persian VARCHAR, Urdu VARCHAR, Hindi VARCHAR, Punjabi (India) VARCHAR, Punjabi (Pakistan) VARCHAR, Malayalam VARCHAR, Bangla VARCHAR, Hebrew VARCHAR, Indonesian VARCHAR, Malay VARCHAR, Filipino VARCHAR, Pashto VARCHAR, Tamil VARCHAR, Telugu VARCHAR, Kashmiri VARCHAR, Hausa VARCHAR, Yorùbá VARCHAR, Kurdish VARCHAR) CREATE TABLE translators (translators_id AUTO_INCREMENT PRIMARY KEY, Call sign VARCHAR, Frequency MHz VARCHAR, City of license VARCHAR, ERP W INT, FCC info VARCHAR) CREATE TABLE leaders_in_the_northern_ireland_assembely (leaders_in_the_northern_ireland_assembely_id AUTO_INCREMENT PRIMARY KEY, Leader VARCHAR, Party VARCHAR, Leader's Seat VARCHAR, Number of Seats INT, Leader since VARCHAR)  
SELECT MIN ERP W FROM translators WHERE Frequency MHz = 89.3 fm